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Method for simulating the study on hydrogen generation in process of radioactive solid waste disposal

A technology for solid waste and simulation research, applied in radioactive purification, nuclear engineering, dosimeters, etc., to achieve high test safety and strong test controllability

Active Publication Date: 2019-08-06
CHINA INST FOR RADIATION PROTECTION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, during the disposal of solid waste, there is no ventilation system in the disposal cells in the disposal site. Whether the HIC disposal scheme can ensure that the gas released by HIC does not affect the safe disposal of HIC needs to be verified through experiments and theoretical calculations. influences

Method used

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  • Method for simulating the study on hydrogen generation in process of radioactive solid waste disposal
  • Method for simulating the study on hydrogen generation in process of radioactive solid waste disposal
  • Method for simulating the study on hydrogen generation in process of radioactive solid waste disposal

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Embodiment Construction

[0039] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

[0040] Exemplary simulated containers for simulating high-density polyethylene high-integrity containers for practicing the method of the present invention are as follows: Figure 2-5 As shown, it includes tank 1, tank steel pipe 2, first 1 / 2 VCR joint 3, second 1 / 2 VCR joint 4, bellows 5, bellows metal seal valve 6, ferrule joint 7, ferrule nut 8, Tank nut 9, metal gasket 10, lifting ring 11, third 1 / 2 VCR connector (not shown in the figure).

[0041] The tank body 1 is welded on the outside of the top end face of the tank body steel pipe 2 perpendicular to the end face. The end face is a stainless steel plate, which is connected with the lower end of the tank body 1 by welding. Hanging ring 11 is set outside the end face, through which the simulation container filled with simulated waste resin (unused resin of the same type) a...

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Abstract

The invention, which belongs to the technical field of radioactive waste treatment, relates to a method for simulating the study on hydrogen generation in the process of radioactive solid waste disposal. According to the method, a simulation sample for simulating a radioactive solid waste is used in a simulation container for simulating a high-density polyethylene high-integrated container to perform the following steps: step one, adding the simulation sample into the simulation container; step two, irradiating the simulation container to reach a required dose; and (3), measuring the pressureof gas in the simulation container and analyzing a gas atmosphere to obtain an average hydrogen release rate and a gas component ratio for different disposal periods. With the provided method, the hydrogen generation in the process of radioactive solid waste disposal can be simulated and studied and the input is provided for the theoretical calculation of high-density polyethylene high-integral container disposal, thereby avoiding a phenomenon of explosion caused by too high concentration of combustible gas in the high-density polyethylene high-integrated container disposal environment based on the simulation study result.

Description

technical field [0001] The invention belongs to the technical field of radioactive waste treatment, and relates to a method for simulating and studying hydrogen generation in the process of radioactive solid waste disposal. Background technique [0002] High Density Polyethylene High Integral Containers (HDPE-HIC, HIC for short) are processed by rotational molding of high-density polyethylene materials, which have high chemical stability, thermal stability, biodegradability resistance and radiation resistance. In nuclear power plants, HIC is used to fill radioactive wet solid waste, such as spent resin. After the HIC is filled with radioactive wet solid waste, it is first sent to the nuclear power plant solid waste temporary storage warehouse for temporary storage, and finally sent to the disposal site for disposal. During the temporary storage and disposal process, the waste resin and its adsorbed water filled in the HIC are decomposed by the radiation of the radionuclide ...

Claims

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Application Information

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IPC IPC(8): G01T1/02G21F9/28
CPCG01T1/02G21F9/28
Inventor 赵帅维李洪辉贾梅兰毛亮闫晓俊刘伟杨彪刘建琴
Owner CHINA INST FOR RADIATION PROTECTION
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